//Section-1,Example-4,Page no.-AC.441 //To predict the tensile strength parallel to fibres. clc; E_f=76 e_f=((1800*10^6)/(76*10^6)) //faliure strains of fibres e_m=((55*10^6)/(3*10^9)) //faliure strains of matrix Q_f=1.8 V_f=0.4 Q_mu=0.055 Q_f1=E_f*e_m Q_c1=((Q_f1*V_f) +(Q_mu*(1-V_f))) disp(Q_c1,'stress carried by composite assuming parallel coupling between fibres and matrix(GPa)') Q_c2=Q_f*V_f disp(Q_c2,'max. stress carried by composite when only fibres are contributing(GPa)')